<template>
    <div>
<!-- 面包屑导航区域 -->
<el-breadcrumb separator-class="el-icon-arrow-right">
  <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item>用户管理</el-breadcrumb-item>
  <el-breadcrumb-item>用户列表</el-breadcrumb-item>
</el-breadcrumb>
<!-- 卡片视图区 -->
<el-card>
<!-- 收缩与添加区域 -->

<!-- 使用栅格来划分位置大小 -->
<el-row :gutter="20">
    <el-col :span="10">
    <el-input clearable @clear='getUserList' placeholder="请输入内容" v-model="queryInfo.query" class="input-with-select">
      <!-- 搜索功能的实现，先将输入框绑定，再调用getUserList -->
         <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
    </el-input>
    </el-col>
    <el-col :span="4">
        <el-button type="primary" @click="addDialogVisible=true">
            添加用户
        </el-button>
    </el-col>
</el-row>
<el-table :data = 'userlist' border stripe>
    <!-- 添加索引列 -->
    <el-table-column type="index"></el-table-column>
    <el-table-column label='姓名' prop="username"></el-table-column>
    <el-table-column label='邮箱' prop="email"></el-table-column>
    <el-table-column label='电话' prop="mobile"></el-table-column>
    <el-table-column label='角色' prop="role_name"></el-table-column>
    <el-table-column label='状态'>
        <!-- 作用域插巢 -->
        <template slot-scope= 'scope'>
            <!-- 可以用来显示这一行的数据{{scope.row}} -->
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
        </template>
    </el-table-column>
    <el-table-column label='操作' width="180px">
        <template slot-scope='scope'>
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
            <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable="false">
            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
        </template>
    </el-table-column>
</el-table>
<!-- 分页区域 -->
<el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1,2,5,10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
</el-card>
<!-- 添加用户对话框 -->
<el-dialog
  title="添加用户"
  :visible.sync="addDialogVisible"
  width="50%"
  @close="addDialogClosed">
  <!-- 内容主题区 -->
  <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
    <el-form-item label="用户名" prop="username">
      <el-input v-model="addForm.username"></el-input>
    </el-form-item>
    <el-form-item label="密码" prop="password">
      <el-input v-model="addForm.password"></el-input>
    </el-form-item>
    <el-form-item label="邮箱" prop="email">
      <el-input v-model="addForm.email"></el-input>
    </el-form-item>
    <el-form-item label="手机" prop="mobile">
      <el-input v-model="addForm.mobile"></el-input>
    </el-form-item>
  </el-form>
  <!-- 底部区域 -->
  <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="adduser">确 定</el-button>
  </span>
</el-dialog>
<!-- 修改用户的对话框 -->
<el-dialog
  title="修改用户"
  :visible.sync="editDialogVisible"
  width="50%"
  @close="editDialogClosed">
  <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
   <el-form-item label="用户名">
     <el-input v-model="editForm.username" disabled></el-input>
   </el-form-item>
   <el-form-item label="邮箱">
     <el-input v-model="editForm.email" prop="email"></el-input>
   </el-form-item>
   <el-form-item label="手机">
     <el-input v-model="editForm.mobile" prop="mobile"></el-input>
   </el-form-item>
  </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
</el-dialog>
<!-- 分配角色的对话框 -->
<el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisible"
  width="50%"
  @close="setRoleDialogClosed">
    <p>当前的用户：{{ userInfo.username }}</p>
    <p>当前的角色：{{ userInfo.role_name }}</p>
    <p>分配新角色：
      <el-select v-model="selectedRoleId" placeholder="请选择">
        <el-option
          v-for="item in roleList"
          :key="item.id"
          :label="item.roleName"
          :value="item.id">
        </el-option>
  </el-select>
    </p>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>
    </div>
</template>

<script>
export default {
  data () {
    // 自定义验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^[A-Za-z\d]+([-_.][A-Za-z\d]+)*@([A-Za-z\d]+[-.])+[A-Za-z\d]{2,4}$/
      if (regEmail.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }
    var checkmobile = (rule, value, cb) => {
      const regMoblie = /^[1][3,4,5,7,8][0-9]{9}$/
      if (regMoblie.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userlist: [],
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 添加用户数据的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '用户名的长度在3~10个之间', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '密码的长度在6~15个之间', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          // 自定义验证规则
          { validator: checkmobile, trigger: 'blur' }
        ]
      },
      // 控制修改用户的对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户的数据
      editForm: {
      },
      editFormRules: {
        email: [
          { required: true, message: '请输入用户邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }],
        mobile: [{ required: true, message: '请输入用户手机号', trigger: 'blur' },
          { validator: checkmobile, trigger: 'blur' }]
      },
      // 控制分配角色的对话框的显示与隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      roleList: [],
      // 已选中的角色
      selectedRoleId: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      }
      this.userlist = res.data.users
      this.total = res.data.total
      console.log(res)
    },
    // 分页效果中修改页容量
    handleSizeChange (newchange) {
      this.queryInfo.pagesize = newchange
      this.getUserList()
    },
    // 分页效果中修改页数
    handleCurrentChange (newchange) {
      this.queryInfo.pagenum = newchange
      this.getUserList()
    },
    // 监听开关状态的改变
    async userStateChanged (userinfo) {
      console.log(userinfo)
      const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户失败')
      }
      this.$message.success('更新用户成功')
    },
    // 监听对话框的关闭事件,将表单数据清空
    addDialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    // 点击按钮添加新用户
    adduser () {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        // 可以发起添加用户的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        // 隐藏添加用户的对话框
        this.addDialogVisible = false
        // 重新获取用户的列表数据
        this.getUserList()
      })
    },
    // 展示用于修改用户数据的对话框
    async showEditDialog (id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户数据失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 监听用户修改对话框的关闭
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息并提交
    editUserInfo () {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        // 发起修改用户的请求
        const { data: res } = await this.$http.put('users/' + this.editForm.id,
          { email: this.editForm.email,
            mobile: this.editForm.mobile })
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户失败')
        }
        // 关闭对话框
        this.editDialogVisible = false
        // 刷新数据列表
        this.getUserList()
        // 提示修改数据成功
        this.$message.success('更新用户信息成功！')
      })
    },
    // 根据id删除用户
    async removeUserById (id) {
      // console.log(id)
      // 询问用户是否删除数据
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning',
        center: true
      }).catch(err => err)
      // 如果用户确认删除，则返回值为字符串confirm

      // 如果用户取消了删除，则返回值为字符串cancel
      // console.log(confirmResult)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      // console.log('确认了删除')
      const { data: res } = await this.$http.delete('users/' + id)
      console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败')
      }
      this.$message.success('删除用户成功')
      this.getUserList()
    },
    // 展示分配角色的对话框
    async setRole (userInfo) {
      this.userInfo = userInfo

      // 在显示对话框之前，获取所有的角色的列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }
      this.roleList = res.data
      this.setRoleDialogVisible = true
    },
    // 点击按钮分配角色
    async saveRoleInfo () {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, {
        rid: this.selectedRoleId
      })
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败！')
      }
      this.$message.success('更新角色成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框的关闭事件
    setRoleDialogClosed () {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="less" scoped>
</style>
